August, 2019

• 14 August

  Embryo culture technique: To overcome barriers of distantly related crosses.

  

  What is embryo culture? Embryo culture is the sterile isolation and growth of an immature or mature embryo in vitro with the goal of obtaining a viable plant. Embryo rescue technique in overcoming barriers of distantly related crops: Distant hybridization: Hybridization between individuals from different species, belonging to the same …

  Read More »
• 13 August

  Friendly Behaviour Of Bacteria

  

  When we heard about bacteria the first thing that came to our mind is that it must be harmful for us. And it’s  very common because the word”bacteria” generally indicates some sort of disease and is likely to repulse and scare we off. Scientists estimate that only 1-10% of total …

  Read More »
• 11 August

  Rickettsia: The Disease Causing Bacteria (Part-1)

  

  ‘Rickettsia’ is a genus of non-motile, gram-negative, non spore-forming, highly pleomorphic bacteria that may occur in the forms of cocci, rods, or threads. The term ‘rickettsia’ has nothing to do with ‘rickets’, which is a deficiency disease resulting from lack of vitamin D; the bacterial genus ‘Rickettsia’ was named after Howard Taylor …

  Read More »
• 10 August

  Heterocyst: A Botanical Enigma

  

  Imagine being a very special sibling, having some unique features, acting in a good and interestingly weird way unlike others – feeling important already, right? Heterocyst is such a sibling of other algal cells which altogether make a filamentous structure of the algae. Whereas the other cells perform the function …

  Read More »
• 8 August

  Study Botany in USA: Steps to Follow

  

  প্রথমেই ক্ষমা চেয়ে নিচ্ছি আমার সেই সব জুনিয়র এর কাছে যারা কিনা আমাকে প্রায়ই নক দেয় এবং অনেক সময় হয়তো আমার পক্ষে ধৈর্য রেখে সবার প্রশ্নের উত্তর দেয়া সম্ভব হয় না। একে আমি নিজে introvert, নতুন মানুষের সাথে অনেক ক্ষণ কথা বলা এমনিতেই একটু কষ্টকর, তার উপরে বাবা মা সবাইকে …

  Read More »
• 5 August

  Divisions: Euglenophyta, Phaeophyta, Chrysophyta

  

  Algae is an extremely diverse group of organisms that make up the lower phylogenetic echelons of the plant kingdom. A precise definition of this group is elusive and they share many obvious characteristics with higher land plants, whereas their distinguishing features from other plant groups are varied and more subtle …

  Read More »
• 5 August

  Essential Oil: A Concentrated Hydrophobic Liquid

  

  Essential Oil Essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. They are usually lipophilic (literally: oil-loving) compounds that usually are not miscible with water. Also, they can be diluted in solvents like pure ethanol and polyethylene glycol. They are also known as volatile oils, ethereal …

  Read More »
• 4 August

  Terpenoids: A Structurally Diverse Class of Natural Products

  

  An enormous range of plant substances are covered by the term ‘Terpenoids’ which is used to indicate that all such substances have a common origin. This Terpenoids are a diverse group of naturally occurring organic compounds mostly found in plants. They are any of a class of hydrocarbons that consist …

  Read More »
• 4 August

  Difference Between: Part One (BOT: 308)

  

  This part of the series named ‘Difference Between’ contains the difference between the following topics of the course ‘The Principles of Crop Improvement’. From syllabus Topic 1: Self incompatibility and cross incompatibility Protandry and Protogyny Self incompatibility (SI) and Coss incompatibility (CI) Gametophytic SI and Sporophytic SI Self incompatibility and …

  Read More »

July, 2019

• 15 July

  উদ্ভিদপ্রেমীদের চোখে কার্জনহল দেখতে যেমন

  

  ঢাকা বিশ্ববিদ্যালয়ের উদ্ভিদবিজ্ঞানের ছাত্রছাত্রীদের গাছের নাম জানা শুরু হয় কার্জনের গাছ দেখেই। কত হরেক রকম গাছ আছে আমাদের এই কার্জনে, আর উদ্ভিদবিজ্ঞানের বাগানে ঢুকলে তো কথাই নেই। তবুও বাস্তবতা হচ্ছে চোখের সামনের অধ্যয়নের বিষয় থাকলেও চার বছর ধরে দেখা এই গাছগুলোর নাম জিজ্ঞেস করা হলে হয়তো আমাদের উদ্ভিদবিজ্ঞানেরই অনেক ছাত্র …

  Read More »